About us    The team

The team

Join our team – We’re recruiting part-time CEO for our Founder & CEO’s maternity cover.

Alexandra Fitzsimmons

Founder and CEO

Alexandra studied maths at the University of Cambridge. Since then, she has spent almost a decade working in museums and creative media – for example, working directly with visitors on family activities at the V&A, and as an international exhibition design consultant. Alexandra is a Fellow of the School for Social Entrepreneurs. When not running Maths on Toast, she teaches Museum Studies as part of the MSc Science Communication at Imperial College London.

Nathalie Meghriche

Administration Manager

Nathalie has worked in administration and project management roles within the arts & culture sector for 10 years and in the charity sector as a volunteer manager for 4 years.

Francesca Piacentini

Events & Schools Manager

Francesca started her professional life as a primary school teacher. She now leads family maths events for Maths on Toast, and also works for a number of other heritage and community organisations.


Dr Alison Clark-Wilson is a former secondary school mathematics teacher who is now a Principal Research Associate within UCL Institute of Education.  Alison is a Fellow of the Institute of Mathematics and its Applications. She currently serves as an elected member of the Executive Committee for the British Society for the Learning of Mathematics.

Krystle McGilvery is a full time Finance Manager for a start-up Tech company. She sits on the CIMA Central London volunteer committee, who provide networking opportunities keeping students and members up to date. She is keen on increasing the financial literacy of those entering adulthood, and is working to provide opportunities for people to learn. With this in mind, she teaches mathematics to prepare those seeking to improve or develop their skills for a number of different reasons.

Holly McGivern is an experienced people and budget manager. She works for a Central London Council, where her specialisms include social housing and systems thinking. Her previous work tackling overcrowding in council tenancies resulted in what is now nationally recognized as a good practice approach to this area of work. Holly also has an interest in American literature and two cats.

Reena O’Neill is a marketing communications consultant with nearly 20 years experience spanning social enterprise, charity, public and commercial sector organisations. Over her career, she has redeveloped a number of website, microsites and intranets for organisations and campaigns. For the past five years she has been working with charity website specialists Fat Beehive providing advice to clients on user experience principles and practices to improve the user journey and achieve their charity’s goals. She now works freelance for a range of organisations including University College London.

Sophie Smith Sachdeva is a freelance arts and heritage professional, who has recently founded a small press. Sophie has previously worked for Arts Council England, for the Story Museum in Oxford, and for international design consultancy Event Communications. Sophie also writes poetry and speaks Chinese.

Dr Paul Wilmott studied mathematics at St Catherine’s College, Oxford, where he also received his DPhil. He has written several textbooks on the mathematics of derivatives and risk management and is the publisher of a popular finance website and a bimonthly magazine.